func render() {
modelMatrix = trig.MatrixMult(trig.RotateY(math.Pi/360), modelMatrix)
gl.Viewport(0, 0, 768, 768)
gl.ClearColor(0.0, 0.0, 0, 0)
gl.Enable(gl.DEPTH_TEST)
raytraceProgram.Use()
mInput.UniformMatrix4f(false, (*[16]float32)(modelMatrix))
vInput.UniformMatrix4f(false, (*[16]float32)(viewMatrix))
pInput.UniformMatrix4f(false, (*[16]float32)(projMatrix))
glh.With(framebuffer, func() {
framebuffer.UpdateTextures()
gl.DrawBuffer(gl.COLOR_ATTACHMENT0)
gl.Clear(gl.COLOR_BUFFER_BIT)
gl.DepthFunc(gl.GREATER)
gl.CullFace(gl.BACK)
cube.Render(gl.TRIANGLES, raytraceProgram)
gl.DrawBuffer(gl.COLOR_ATTACHMENT1)
gl.Clear(gl.COLOR_BUFFER_BIT)
gl.DepthFunc(gl.LESS)
gl.CullFace(gl.FRONT)
cube.Render(gl.TRIANGLES, raytraceProgram)
})
}
func main() {
window, err := initGL()
if err != nil || window == nil {
log.Printf("InitGL: %v", err)
return
}
defer glfw.Terminate()
shaderLoad()
cube, square = createBuffers()
defer cube.Release()
defer square.Release()
timeframe = 0.0
stack := trig.NewMatrixStack()
stack.Push(trig.TranslateXYZ(-0.5, -0.5, 0), trig.RotateY(math.Pi/4))
modelMatrix = stack.Get()
viewMatrix = trig.TranslateXYZ(0, 0, -2)
projMatrix = trig.Frustum(-0.5, 0.5, -0.5, 0.5, 1, 10)
textureBank = helper.InitTextureBank(4, 1)
textureBank.InitSamplerWithDefaults(0)
textureBank.InstantiateSamplers()
textureBank.InstantiateGeometry(0, 768, 768, 0, 0)
textureBank.InstantiateGeometry(1, 768, 768, 0, 0)
textureBank.InstantiateGeometry(2, 256, 256, 256, 0)
textureBank.InstantiateGeometry(3, 256, 0, 0, 0)
textureBank.InstantiateFormat(0, gl.FLOAT, gl.RGB, gl.RGB32F)
textureBank.InstantiateFormat(1, gl.FLOAT, gl.RGB, gl.RGB32F)
textureBank.InstantiateFormat(2, gl.UNSIGNED_BYTE, gl.RED, gl.R8)
textureBank.InstantiateFormat(3, gl.UNSIGNED_BYTE, gl.RGBA, gl.RGBA)
textureBank.ConfigUnit(0, gl.TEXTURE_2D, 0)
textureBank.ConfigUnit(1, gl.TEXTURE_2D, 0)
textureBank.ConfigUnit(2, gl.TEXTURE_3D, 0)
textureBank.ConfigUnit(3, gl.TEXTURE_1D, 0)
loadTexture()
textureBank.InstantiateTextures()
glh.OpenGLSentinel()()
glh.With(textureBank, func() {
framebuffer = &helper.Framebuffer{}
framebuffer.Outputs = []gl.Texture{
textureBank.Units[0].Texture,
textureBank.Units[1].Texture,
}
framebuffer.Sizes = []*helper.TextureGeometry{
textureBank.PixelData[0].Geometry[0],
textureBank.PixelData[1].Geometry[0],
}
for !window.ShouldClose() {
render()
compose()
window.SwapBuffers()
glfw.PollEvents()
}
})
os.Exit(0)
}